Bathtub



FIG. 1 is a perspective view taken from the top, one side and one end of a bathtub showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is an elevational view taken from one side thereof, the opposite side being a mirror image of the side shown;

FIG. 4 is a left end elevational view thereof;

FIG. 5 is a right end elevational view thereof; and

FIG. 6 is a bottom plan view thereof. 

The ornamental design for a bathtub, substantially as shown. 